Samsung M393A4K40CB2 DDR4 RDIMM Memory Module

Samsung M393A4K40CB2 is a 32GB DDR4 ECC Registered RDIMM (2Rx4) memory module designed for servers and data centers requiring high density with error correction. It operates at 2933 MT/s (PC4-2933Y-RB2) and uses a dual-rank 2Rx4 organization, balancing capacity and bandwidth for multi-socket systems. The part number M393A4K40CB2 identifies a Samsung DDR4 RDIMM in the M393A4K40 family, compatible with systems that accept 32GB DDR4 ECC RDIMMs at 2933 MHz. ECC protects against single-bit errors and helps maintain data integrity on long-running workloads, while the registered memory interface improves signal integrity in long DIMM traces. This 32 GB module is suitable for virtualization hosts, databases, and other memory-intensive applications where reliability is critical. In configurations that support 2933 MT/s DDR4 ECC RDIMMs, you can deploy this module as a standalone 32 GB DIMM or as part of a larger memory footprint to scale memory capacity efficiently.